Samarium Cobalt Block Magnets

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Samarium Cobalt Block & Bar Magnets

Samarium Cobalt (SmCo) block & bar magnets are strong permanent magnets that offer excellent magnetic stability in high or very low temperature environments. Part of the rare earth magnet family, SmCo block magnets have superior magnetic properties compared to other permanent magnet materials because of their high-resistance to corrosion or demagnetization. From medical devices to high-performance motors and sensor systems, samarium cobalt magnets are ideal for technical applications where magnetic stability is critical in extreme temperatures and space is a limiting factor.

SmCo Safety Precautions
Please note that special safety precautions should be taken when handling & packaging this material.

We carry a large inventory of Samarium Cobalt (SmCo) Block & Bar Magnets, not all of which are shown on this website. Contact us today or send us a special request and let us know what you are looking for.

* $15.00 total minimum order (excluding shipping & tax if applicable) - Items can be combined to reach the minimum amount.

Features & Characteristics of Samarium Cobalt Bar & Block Magnets

Technical Data for SmCo Magnets

SmCo Magnets Technical Data
Grade: 26
Shapes: Blocks & Bars
Magnetization: Axially Magnetized Through the Thickness (THK)
Br: 10,500 Gauss
BHmax: 26 MGOe
Hc: 9,200 Oersteds
Hci: 10,000 Oersteds
Max Operating Temperature: 662ºF/350ºC
Curie Temp: 825ºF/441ºC
Density (lb/in3): 0.300

SmCo Block Magnet Applications

Robotic Arms Electric Motors MRI Scanner Military Missile Components Aircraft Tail Fin Rudders

Samarium Cobalt (SmCo) magnets have excellent temperature stability while maintaining their magnetic properties in extreme temperature conditions. They are well suited for technical applications where high-performance and magnetic strength is required in very low or high temperatures. SmCo magnets are widely used in the automotive, aerospace, medical, military, industrial manufacturing, semiconductor, wind, power, oil and energy industry.

Common applications for SmCo magnets include:

  • High Performance Motors
  • Actuators
  • Generators
  • Turbo Machinery
  • Electric Motors
  • Magnetic Separation Devices
  • Traveling Wave Tubes
  • Magnetic Couplings
  • Magnetic Bearings
  • Sensor Systems
  • Drilling Equipment
  • Wind Turbine Equipment
  • Energy Recovery Systems
  • Medical Devices
  • Missile Components
  • Industrial Automation Equipment
  • Pipeline Inspection
  • Robotic Arms
  • Gyroscopes
  • Accelerometers
  • Particle Accelerators
  • Sputtering Deposition
  • Magnetic Drive Components
  • Halbach Arrays & more
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Standard Dimensional Tolerances for SmCo Bar & Block Magnets

Here are the standard tolerances for Rare Earth Magnets (SmCo & NdFeB) based on the following dimensions:

  • +/- 0.004” on length & width dimensions ranging from 0.040” to 1.000”.
  • +/- 0.008” on length & width dimensions ranging from 1.001” to 2.000”.
  • +/- 0.012” on length & width dimensions ranging from 2.001” to 3.000”.

*Tolerance on thickness is +/-0.004” regardless of size.

Approximate Pull Info for SmCo Magnets

The approximate pull info listed for SmCo block magnets are for reference only. These values are calculated under the assumption that the magnet will be attached to a flat, ground 1/2" thick mild steel plate. coatings, rust, rough surfaces, and certain environmental conditions can significantly reduce the pull force. Please be sure to test the actual pull in your actual application. For critical applications, it is suggested that the pull be de-rated by a factor of 2 or more, depending on the severity of a potential failure.

Safety Precautions for Samarium Cobalt Magnets

SmCo magnets are hard, very brittle and high in magnetic strength. They can also snap together with great force, and chip or break if dropped. Therefore, they require careful handling and packing in order to prevent injuries or damages to the magnets.

Custom Samarium Cobalt Magnets - How Can We Help?

We can custom manufacture SmCo block magnets to exact specifications using our in-house manufacturing facilities and experienced team of engineers. Contact us or send us a request for quote and we'll help you determine the most economical solution for your project. For more technical applications, our sister company, Integrated Magnetics specializes in custom magnets & magnetic assemblies.

Special Request Contact Magnet Shop


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